You can check out the green houses, the butterflies and more.

Think cheap weekend trip. You can easily drive there and back from
Birmingham in one day.

Here's what they posted on their Facebook page:

Have you heard? Callaway
Gardens is inviting everyone to explore Callaway Gardens for FREE in
January and February of 2011. Share with your friends and family as we
don't want anyone to miss out on the opportunity for some rest and
relaxation in the beauty of nature, especially after the hustle and
bustle of the holiday season. Take time to renew your spirit at
Callaway Gardens. We look forward to seeing you.